Shaker mug



FIG. 1 is a top perspective view of a shaker mug;

FIG. 2 is a front view of the shaker mug;

FIG. 3 is a rear view of the shaker mug;

FIG. 4 is a left side view of the shaker mug;

FIG. 5 is a right side view of the shaker mug;

FIG. 6 is a top view of the shaker mug;

FIG. 7 is a bottom view of the shaker mug; and,

FIG. 8 is a bottom perspective view of the shaker mug.

The broken lines shown in the drawings represent portions of the shaker mug that form no part of the claimed design. 

CLAIM The ornamental design for a shaker mug, as shown and described. 